1) HCHO 2) Water 3) Eosin dye 4) Egg white Answer: (4) The component which ensures the stability of the... View Article
If the equilibrium constant for A ⇌ B + C is Keq(1) and that of B + C ⇌ P... View Article
1) H(g) + e– → H(g)– 2) Na(g) → Na(g)– → e– 3) Ar(g) + e– → Ar(g)– 4) O–(g)... View Article
The reaction in which the hybridisation of the underlined atom is affected is: Option 2 is the answer.
Answer: 60 t75% = 90 min = 2 × t1/2 t1/2 = 45 min [ln (2) / 45] × 60%... View Article
Answer: 3400 N2 + 3H2 → 2NH3 2800g 1000g 100 mol 500 mol L.R. mole of NH3 produced = 200... View Article
At 300 K, the vapour pressure of a solution containing 1 mole of n-hexane and 3 moles of n-heptane is... View Article
The number of chiral centres present in [B] is Answer: (4) 4 chiral centres are present in the final product.
1) Li2O2, Na2O2 and K2O2 2) Li2O, Na2O2 and KO2 3) Li2O, Na2O and K2O2 4) Li2O, Na2O2 and K2O... View Article
1) Actinoids and Group 6 2) Group 11 and Group 4 3) Group 6 and Actinoids 4) Actinoids and Group... View Article
1) Thymine and proline 2) Adenine and thymine 3) Adenine and lysine 4) Adenine and proline Answer: (3) CHCl3 +... View Article
The intermolecular potential energy for the molecules A, B, C and D given below suggests that: 1) A–A has the... View Article
The decreasing order of reactivity of the following organic molecules towards the AgNO3 solution is: 1) (B) > (A) >... View Article
Most suitable salt which can be used for efficient clotting of blood will be: a. Mg(HCO3)2 b. FeSO4 c. NaHCO3... View Article
Match List-I and List-II. a. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) b. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) c. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) d.... View Article
a. Cr < Fe < Co < Cu < Zn b. Cr < Zn < Co < Cu < Fe... View Article
The correct shape and I-I-I bond angles respectively in I–3 ion are: a. Trigonal planar; 120o b. Distorted trigonal planar;... View Article
a. \(\begin{array}{l}\xrightarrow{Sn/HCl} / \xrightarrow{Br_{2}}/ \xrightarrow{NaNO_{2}}/ \xrightarrow{NaBr}\end{array} \) b. \(\begin{array}{l}\xrightarrow{Sn/HCl} / \xrightarrow{KBr}/ \xrightarrow{Br_{2}}/ \xrightarrow{H^{+}}\end{array} \) c. \(\begin{array}{l}\xrightarrow{NaNO_{2}} / \xrightarrow{HCl}/ \xrightarrow{KBr}/ \xrightarrow{H^{+}}\end{array} \) d. \(\begin{array}{l}\xrightarrow{Br_{2}/Fe} /... View Article
The diazonium salt of which of the following compounds will form a coloured dye on reaction with β-Naphthol in NaOH?... View Article
Which of the following reagent is suitable for the preparation of the product in the following reaction? a. Red P... View Article
